* Urban areas: 40 km/h (25 mph)
* Rural areas: 80 km/h (50 mph)
* Highways: 100 km/h (62 mph)
United States
* Urban areas: varies by state, typically 25-35 mph (40-56 km/h)
* Rural areas: varies by state, typically 55-65 mph (89-105 km/h)
* Highways: varies by state, typically 65-75 mph (105-121 km/h)